Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon according to the claimed design; and,

FIG. 2 is a front view of the display screen or portion thereof with icon showing the icon in a use environment.

The dash-dot broken lines in the figures showing the display screen or portion thereof form no part of the claimed design. The dash-dash broken lines in FIG. 2 illustrating the environment of the icon form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 